multidex NoClassDefFoundError

[Leo Zhu]

System APP: true

Thread: main

Exception: java.lang.NoClassDefFoundError

Cause: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.ads.internal.u.k" on path: DexPathList[[zip file "/system/framework/com.android.location.provider.jar", zip file "/system/framework/com.android.media.remotedisplay.jar", zip file "/data/app/com.google.android.gms-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.google.android.gms-2, /vendor/lib, /system/lib]]

Message: com/google/android/gms/ads/internal/u/k

at com.google.android.gms.ads.internal.u.i.a(SourceFile:52)

at com.google.android.gms.ads.internal.u.i.a(SourceFile:28)

at com.google.android.gms.ads.internal.j.g.<init>(SourceFile:42)

at com.google.android.gms.ads.internal.j.d.run(SourceFile:41)

at android.os.Handler.handleCallback(Handler.java:733)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:136)

at android.app.ActivityThread.main(ActivityThread.java:5045)

at java.lang.reflect.Method.invokeNative(Native Method)

at java.lang.reflect.Method.invoke(Method.java:515)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)

at dalvik.system.NativeStart.main(Native Method)

Exception: java.lang.ClassNotFoundException

Cause: null

Message: Didn't find class "com.google.android.gms.ads.internal.u.k" on path: DexPathList[[zip file "/system/framework/com.android.location.provider.jar", zip file "/system/framework/com.android.media.remotedisplay.jar", zip file "/data/app/com.google.android.gms-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.google.android.gms-2, /vendor/lib, /system/lib]]

at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)

at java.lang.ClassLoader.loadClass(ClassLoader.java:497)

at java.lang.ClassLoader.loadClass(ClassLoader.java:457)

at com.google.android.gms.ads.internal.u.i.a(SourceFile:52)

at com.google.android.gms.ads.internal.u.i.a(SourceFile:28)

at com.google.android.gms.ads.internal.j.g.<init>(SourceFile:42)

at com.google.android.gms.ads.internal.j.d.run(SourceFile:41)

at android.os.Handler.handleCallback(Handler.java:733)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:136)

at android.app.ActivityThread.main(ActivityThread.java:5045)

at java.lang.reflect.Method.invokeNative(Native Method)

at java.lang.reflect.Method.invoke(Method.java:515)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)

at dalvik.system.NativeStart.main(Native Method)

Is there any problem when integrating Admob with multidex?

[Veer Arjun Busani]

Hi Leo,

I have just now enabled Multidex and not found any issue. Could you please confirm with any of our sample apps by enabling Multidex on them and see if any issue persists? Also the issue might not be about Multidex, so could you confirm whether ProGuard is not obfuscating any class? 

Thanks,

Veer Arjun Busani

Mobile Ads SDK Team

[Leo Zhu]

Thanks for the reply

It works on most device. We received this crash from a particular device Coolpad 3300A. Is there any possibility that the google service on Coolpad 3300A has bugs. Is it the device bug?

[Veer Arjun Busani]

Hi Leo,

In that case, have you tried to simply enable Multidex without having any Ads for Coolpad 3300A? This could also be device specific supporting Multidex. Before I completely dismiss as beyond the scope for Mobile Ads, would you be able to confirm the following - 

• That you are not using any Custom ROM for this device? If that's the case, try to flash back to Stack ROM and see if the issue persists.
• Try and test Multidex enabled app without any Mobile Ads. If you are still seeing crashes, it would be beyond the scope of this support forum and suggest you to look here. 

Thanks,